Stainless Steel 5mm Deep U Groove Ball Bearings Pack of 2, Pulley Bearing Wheel Rail Ball Bearings Wheel

Todo fue perfecto.graciad.

Its not actually a deep V. Its more comparable to a u groove.

I used these pulleys for the 1/4 rope on my automatic swimming pool cover. I was not sure it was going to work when I received them because the U groove is shallow (Not deep as advertised) however, it seems to function well. I am satisfied with the product.

The bearing I just received (S608z) seems to be of nice quality (maybe a 4 or a 5). Seems tight and good finish. But the dimensions listed arent close to actual. The bearings I just received had an outside diameter of 31.5mm, and a width on outside of shoulders of 12mm (10.43mm for width of rotating pulley). The shaft appears to be closer to .25 (6.4mm). And depth of groove is 2.8mm. Maybe size doesnt matter (no joke intended), but not sure why you would put dimensions in a listing if they arent right.

Getting emails 4 reviews

Its working

These salvaged our zip line, which has been neglected by the kids because it no longer zipped. The new bearings where a perfect fit, and the zip line works perfectly now.

Much better than the plastic rollers that came with zip line originally. Built to last!

Good high quality bearings. Works great in my pully system I have set up in my garage.

Not 7mm as described. When another reviewer said it fits a 1/4 inch bolt well, that is because it IS a 1/4 hole.